Type-writing machine.



J. A, RUNUHETTI.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 54 1908.

Patented Dec. 15, 1914.

6 SHEETS-SHEET 1.

nvv m WITNESSES ATTO NE Y5.

J. RONGHETTI.

TYPE WRITING MACHINE.-

APPLICATION FILED JUNE 5, 1908.

Patented Dec. 15, 1914.

5 SHEETPFSHFET 3.

ATTOR Us,

J. RONCHETTI.

TYP/E WRITING MACHINE.

APPLICATION FILED JUNE 5,1908.

1,1%0,747, v Patented Dec. 15,1914 g a sasmsi-snnm 4.

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5 i I I 6 )mzmvrqn I ax v Arm NEYSQ J. A. RO-NOHETTI. TYPE WRITXNG MACHINE. APPLICATION PIL BD mm: 5, 190a;

Patented Dec. 15, 191%.

5 SHBETS-SHEET 5 ATTDRNEYS. 7

"pin; sr rns FFlQEi JQSEPH ALBERT RQNCHETTI, 0F WOQN'SOCKET, RI'IQDE ISLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, Ti} THE NOISELESS TYPEWBITEE GOMEANY, OF MIDDLE'EQNN, CONNECTIGUE, A CDRPOIRATION OF CONNECTICUT.

TYPE-WRITING MAGHINE.

Specification of Letters Patent. v Pmggmiggfi Doc, 1.5, 1914.

Application fiiedii'une 5, 190$. Serial No. 436,745.

To all whom, it may concern:

Be it known that I, Josnrii Al Rox- CHETTI, a subject of. the King of Italy, residing at Woonsocket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Type-lvriting Machines, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This inv'entionrelates to typewriting machines, and one of the objects thereof is to. provide new and improved means for preventing the printing instrumentalities from reaching the platen and for preventing an operation of the spacing mechanism when the carriage has completed a line of Writing.

Another object of the invention is to PI'O'I vide an improved form of margin stop block.

Another object is to provide improved means for adjusting the margin stop blocks upon the platen carriage and for conveniently indicating. the adjusted positions thereof with respect to the margin'rack bar. 'A further object of the invention is to provide means whereby the returning movement of the carriage may be arrested without producing noise.

' Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying; drawings, wherein I have illustrated two of the various possible embodiments of my invention, Figure 1 is a view taken transversely of a typewriting machine, the mechanism constituting the invention being shown in elevation. Fig; 2 is a plan view of a portion of the mechanism shown in Pi 1, part of the carriage and the top plate of the machine being omitted" in the interest of clearness of illustration.

Fig. 3 is a sectional'view on an enlarged scale takenon line 3 -3, Fig. 2, showing the carriage return stop. Fig. 4. is a view in side eleva ion of a modified form of the margin release mechanism. Fig. 5 is a pie-z" viewof the mechanismshown in Fig. 4:, the

. Fig. 10 is a front ieW of the portion of the carnage shown in Fig. 9.

Similar-reference characters refer to similar parts throughout the several views of the drawings.

Referring. now to the drawings, 1 denotes a portion of: the framingof the machine and 2 the 'center tie-rod, which extends from front to rear of the machine and is provided with a vertically disposed portion or horn 3 which extends upwardly behind the platen carriage 4 to form a rigid hacking therefor.

lhe platen roll is shown. at 5 and the platen, which is constituted bye. thinhtrip of metal located in front of the platen roll and h ing in contact therewith, is shown at 6. The platen carriage 4: in-the present instance rides during its lettenspacing movement,

or in its return movement to begin a new line of writing, upon a rail 7 which extends longitudinally of the machine.

9 denotes one of the type-bars of the bank thereof, which rests upon a bed supported in the framework of the machine, and is adapted to be projected against the platen by actuating: mechanism connected with a key lever.

The universal bar 8 is shown suspended upon links 10, whichin turn are suspended upon arms 1.1 mounted upon a universal IOClC-Sllitfl? 12, which extends longitudinally of the machine and is ioiirnaled upon trun nion screws 13 carried by the side walls thereof. The key levers, one of which is shown at 14, rest upon the universal'bar and when depressed to eifect printing actuate the some and universal rock-shaft.

15 represents :1- paper table, which is car riedby the platen carriage and extends heneath the platen. roll, said paper table being provided with an upwardly and rearwardly extending portion 16. lliounted upon said paper table, adjacent the edg thereof, is a scale bar 17, said scale oar t..e present standing teeth Extending across the carriage from side to side thereof is a tube A, having a horizontally extending slotin which the tonguedend of the margin stop block 26 is adapted to slide, said slot being of sufficient width to allow'the margin stop block 26 to be rocked upward to the position shown in Fig. 9 of the drawings. The margin stop block is providedwith teeth 27, which engage with those-of the rack, and is held in such engagement by means of a spring 28 fastened as by means of rivets 30 to the margin stop block, the end of the spring engaging underneath the-rear portion of the paper table 15. The margin stop blocks 26 are each provided with a finger piece 31 which has an indicator portion 32 adapted, when the margin block is rocked out of engagement with rack 22', as shown in Fig. 9 of the drawings, to be engaged with the edge of the scale bar 17 and to cooperate therewith .to indicate the position of the block upon the-rack bar 22' Bynieans of this construction, it will be seen that the margin blocks may be swung upward and disengaged from the rack at will, whereupon they may be moved longitudinally to any desired adjusted position, and that the adjusted positions may be readily determined by the operator by means of the indicator 32, which cooperates with the scale 17, springs 28 operating to automatically relock the margin blocks to the rack bar Referring to the embodiment of the linelocking mechanism shown in Figs. 1 and 2 of the drawings, denotes a locking lever which is carried by a shaft 84, oneend of said shaft being journaled in a bracket 35 and being journaled adjacent its other end in a bearing 36 formed in the center tie rod 2. Shaft 34L is provided with a head 37 provided with pivotscrews 38 which support the locking lever 83. By means of this construction, it will be seen that the locking lever 33 may be oscillated vertically as well as s dewise or horizontally, the vertical movement being eli'ccted through a rotation of shaft 34 and the sidewise or horizontal movement being permitted by the pivotal connection of said lever with the pivot screws 38 of head 37. Lever is provided w'th an upwardly extending portion 40, n hich is turned forwardly and interposed in the key levers.

, I the path Oftllifi margin stop blocks 26 and is adapted to be engaged by said stop blocks during the letter feeding or return movements of the platen carriage. The opposite end ll of the locking lever extends forwardly and terminates in adjacency with a vibratory arm 4:2, depending from the universal rock shaft 12-, as shown in Fig. 2 of the drawings. During the oscillatory movements of the universal shaft 12, arm l2 just clears end 41 of the locking lever 33. When, however, the margin stop block at the right hand side of the machine engages the upper end d0 of lever 33, said lever will be swung sidewise upon its pivotal supports 38 and the end 4:1- of said lever will be moved into position to intercept the arm 4C2, thereby preventing any oscillatory movement of the universal rock-shaft l2 and also preventing the universal bar 8 from being depressed by It will be seen, therefore, that one end of lever 33 intercepts the carriage and prevents 'a feeding movement thereof when engaged by the margin stop block, and the other end of said lever prevents an actuation of the universal bar and locks the printing mechanism. Extending forwardly from shaft 3% is an arm 43 which is disposed directly above a rearwardly extending portion 44 of a release lever 4-5, pivoted upon a stud screw 39, the forward end of which is located at the key board and is provided with the finger key 16. Lever 45 is held in the position shown in Fig. l of the drawings by means of a spring 47 con-- nected thereto and to a pin 48 fixed in the framework of the machine. When lever 45 is depressed the finger of the operator, the extension 44 thereof will lift arm a3 and thereby rotate shaft 3st, causi'nga vertical oscillating movement of the locking lever thereby removing the end 40 of said lever from the path of the margin stop block with which the same has been engaged. The lock ing lever will thus be free to move sidewise 1 to carry the end all thereof out of the path of the vibratory arm 12, to release the printing mechanism from its locked condition. This sidewise movement of arm 3-3 is effected by m ans of a spring 49, which is shown in Fig. of the drawings.

In the embodiment of my invention shown in Figs. 4 to S inclusive, for the locking lever 33 is substituted a lever 51, which is pivoted to oscillate horizontally upon pivot 139 52 supported in the center tie-rod 2. Tic-cor 51 has pivotally attached thereto as at a lever 54, the upper end ofwhich is arranged in position to be engaged. by the margin stop blocks in a manner similar to that of the end d0 of lever Lever 5i has :1; depending portion or tail-piece 56. which is connected by means of a link 57 with am upwardly extending portion 58 of a release le'verliO pivoted at 61 to the side wall or limiting the extent of the reciprocal movements of the plunger.

Adjacent the inner end of plunger 63 is provided an elastic Washer 66, which fits the interior bore of the casing, and adjacent this washer is 3 )laced a metal washer 67 both of said Wash- 7 ers being, retained in position by means of a central pin 68. An adjusting screw 70 is tapped into the casing and carries a Washer Pr-a ll. Between Washers 67 and 71 is placed acoil spring 72, which is adapted to be entlrely compressed between said. washers when. the plunger is moved inwardly and against said plunger by the lefthand mar-. gin stop block when the carriage is returned '35 to begin a new line of Writing, pressing the .sion oi spring 72. I

to limit the forward movement thereof. At

this point, it may be noted that the extent of the compression of spring 72 is less "than the distance between two adjacent teeth of the carriage rack, the object of which will of the line locking lever is arranged ad acent the end of the plunger and 1S pressed plunger within. the casing against the ten Having thus described the construction of each embodiment of: my invention disclosed herein, the operation thereof may now be understood: It Will be understood that when the carriage reaches a predetermined position near the end of a line of writing, the right hand margin stop block 26, which has been previously adjusted to the desired position, will contact with the end ll) of the line locking lever 33 andmove the same horizontally, Whereby thef than will be moved horizontally to such pbsr tion as will enable it to intercept the vibratory vincrement of the arm 42, thereby locking l tion with the key-levers. '55

the universal bar and preventing theoperation of the type-bars through their connec- VVhen it isdesired to effect further riting on the same line, adepression of the margin release lever 45 will through extension or lift arm s 3, thereby swinging the end l0 of the locking lever 33 from engagement with the mar-- gin stop block, Where-upon spring 49 will return the locking lever to normal position and a spring '73, connected with the locking lever 33 and with an car 74 upon the tie-r'hd -2, "will return the upper end 40. of lever 33 to its normal position. The rear faces of the margin stop blocks are of coursebeveled so that the end 10 of the locking lever may be automatically moved out of the Way when the carriage is returned. The opera.- tion of the embodiment of the invention shown in Figs. 4; to 8, inclusive, is substantia-lly similar to that Z19Xt-tllJOVG described and will be readily understood from the above description. lVhen the carriage is rc-- turned to begin a. new line of Writing, the left hand margin stop block engaging with the end -10 of the release lever will cause said lever to be projected against the plunger 63, thereby forcing said plunger ithin the casing. At this point it may be noted that said spring 72 is constructed to entirely collapse against Washers 67 and 71, and as the extentof yielding movement of the spring is less than the distance between adjacent teeth of the carriage rack, a proper margin regis tor will be maintained.

It will accordingly be seen 'thatlhayc provided mechanism Well. adapted to attain,

among others, all the ends and objects above other of the advantages inherent in the pres-- cnt construction is that the margin stop 9 blocks may be conveniently adjusted by the operator without the necessity of lookingbehind the paper table, since. thexpositions of said blocks are accurately indicated by urea-ins of the indicating fingers, Which cooperate with the scale'bar upon the paper table. The returning movement of the carriage is also effectively cushioned in a man ner such that no noise is produced during the operation.

As many ch nges could bemade in the above construction and many apparently Widely difl'erent embodiments of this invention could be made Without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted-as illustrative andnot in a limiting sense. Having thus described my invention What I claim as new and desire to secure by Letters Patent is? 1. In a typewriting machine,- in combination, a carriage adapted to reciprocate transversely of the machine, adjustable stops each actuation of the type'action, a member directly connected with said rock shaft adapted to oscillate as said shaft is rocked,

and a pivoted leverpositione'd fore and aft of the machine, one end of which is adapted to coact with one of said adjustable stops at the rearof the carriage to move the other end into the path of said oscillating-member, whereby a; subsequent movement thereof is positively prevented. y

,2. In a typewriting machine, the combination with the platen carriage, and the print- I ing instriunentalities, of a. margin stop block mounted upon theplaten carriage, a universal-rock-shaftactuated by the printing ijuntrumentalities, a vibratory member carried by said universal rock-shaft, a lever disposed longitudinally of the machine and movable about a vertical pivot, having one portion thereof disposed'in the way of said :7 margin stop block and adapted to be moved tion, a carriage adapted to reciprocate transversely of the machine, an adjustable margin stop carried in the rear of said carriage, ,a type action, a transversely disposed rock shaft positioned centrally of the frame of the machine adapted to be actuated at each actuation of the type action, a member diy to each other having a portion disposed in rectly connected with said rock shaft adapt ed to oscillate as said shaft is rocked, a pivoted lever positioned fore and aft of the .machine, one end of which is adapted to coact-with said adjustable stop at the rear of the carriage to move the other end into the .path of said oscillating member, whereby a subsequent vmovement thereof is positively prevented,and key actuated means adjacent the key lever of said type action having an operative connection with said lever adapt ed to move the same about its support whereby its ends are carried out of operative relation to said stop and oscillating member to permit further action of the type action.

4. In a typewritingmachine, the combina-' tion with a universal bar, the universal rock shaft pivotally supporting said bar, of a part which is moved by said rock shaft at each operation thereof, a stop adapted to reciprocate with the carriage, a locking member movable about axes at rightangles the path of travel of said step and another portion adjacent said part; said locking member, when engaged by sztid stop, being adapted to be moved. into the path of said part whereby said rock shaft is locked against movement, means operable from the keyboard. for moving said locking member about one axis out of engagement with said stop, and spring means adapted to engage said member for restoring the same to normal position whereby further operations may take place.

5. In a typewriting machine, in combination, a plurality of key-levers for actuating the type bars, a carriage, an adjustable margin stop block mounted thereon, a universal bar adapted to be actuated by the key-levers, a universal rock-shaft centrally disposed in the frame of the machine and supporting said universal bar, an arm on said rock-shaft adapted to oscillate at each depression of the key-lever, and a universally mounted locking lever mounted upon a relatively fixed portion of the machine and positioned fore and aft therein hav ng one end adapted to be engaged by said margin stop block and the other end extending toward the center of the machine adapted to be moved into the plane of oscillation of said arm when said locking lever is engaged by the margin'stop. 7 6. In a typewriting machine, in combination, a plurality of key-levers for actuating the type bars, a carriage, an adjustable margin stop block mounted thereon, a universal bar adapted to be actuated by the keylevers, a universal rock-shaft connected with the said universal bar, an arm on said rock shaft adapted to oscillate at each depression of the key-lever, a universally mounted looking lever mounted upon a relatively fixed portion of the machine and positioned fore and aft therein having one end adapted to be engaged by said margin stop block and the other end adapted to be moved into the plane of oscillation of said arm when said locking lever is engaged by the margin stop, and means adapted to actuate said locking lever toraise the forward end of the same out of the path of-travel of said arm simultaneously with the rearward movement of the end engaged by the margin stop block,

thereby. unlocking the printing mechanism.

7. Ina typewritinglmachine, in combinal'li tion, a plurality of key-levers for actuating the type bars, a carriage, an adjustable margin stop block mounted thereon, a universal bar adapted to be actuated by the key levers, a universal rock-shaft connected with the said universal bar, an arm on, said rock-shaft adapted to oscillate at each depression of the key-lever, a universally' mounted locking lever mount ed upon a relatively fixed portion of the machine and positioned fore and aft therein having one end adapted to beengaged by said marginstop block and the other end adapted to be moved into the plane of oscillation of said arm when said locking lever is engaged by the margin stop, means operable from the keyboard adapted to swing said locking lever in a vertical plane where 1d end thereof raised out of the "arel or said arm connected with s to normal position. peu'ritiug machine, the combina- 2. a platen carriage, or a margin j mounted thereon, a relatively fixed part d behind said carriage, a butier in art, and a movable stop normally in 'h of travel '05 said margin stop to be engaged thereby and silently 0y the lin er in said part, in a. typewriting machine, the con1bina-, h a. platen cerria go, of a margin stop thereon, an abutment mounted be- 1 arid carriage, a buffer in said abut- .ient, a movable stop normally in the path travel of said margin stop adapted to be engaged thereby and silently arrested by the l ufier in said abutment, and means operable from the keyboard for moving said stop out of the path of travel of the margin stop, whereupon. said bulier will return the stop to normal. position,

10. in type-Writing machine, the combinati n with the platen carriage, of a stop bl: mountedupon said platen carriage am. adjustable thereon, a casing arranged upon a fixed portion of the machine adjacent said carriage, a plunger having limited reciprocal movement located Within said using, a Washer formed of a relatively soft material mounted upon said plunger, a spring adjustably mounted within said casing and urging said plunger to outward movement, said spring being constructed to be compressed less than the amount of space between adjacent teeth of the carriage rack u said. plunger is engaged by said stop block during the return movement or the carriage to arrest the return movement of the latter.

1L In a typewriting machine, the combination with the platen carriage, of a rack bar mounted thereon, a margin stop block adjust-ably mounted upon said rack bar, a casing mounted upon a fixed portion of the machine, a plunger mounted to slide insaid casing and projecting therefrom, said casing being arranged in such position that the plunger will be engaged by said margin stop block during the returning of the carriage into a position to begin a new line of Writing, a spring located Within said casing and urging the plunger to outward movement, cushioning means interposed between said spring and said plunger, and means for adjusting said spring within said casing, said spring When said plunger is engaged by said stop block being adapted to be compressed to an extent less than the space between adjacent teeth of the carriage feed rack.-

12. In a typewritin'g machine.- the combination with the platen carriage of a rack bar mounted thereon, a margin stop block adjuetahly mounted upon said rack, a s ringpressed plunger adapted to cushion t e returning movement of the carriage, and a line-locking lever having a portion thereof interposed between said stop block and said plunger and adapted to be pressed against the latter by the stop block when the carriage returns to begin a new line of writing.

In testimony whereof I afiix my signature, in the presence of two Witnesses.

Witnesses:

C H. Wrrson, H. M. SEAMANS. 

